import { login, getInfo } from '@/api/user'
import { getToken, setToken, removeToken, setItem, getItem } from '@/utils/storage'
import router from '@/router'

const state = {
  token: getToken(),
  name: getItem('name'),
  avatar: '',
  introduction: '',
  roles: [],
}

const mutations = {
  SET_TOKEN: (state, token) => {
    state.token = token
    setToken(token)
  },
  SET_INTRODUCTION: (state, introduction) => {
    state.introduction = introduction
  },
  SET_NAME: (state, name) => {
    state.name = name
    setItem('name', name)
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  SET_ROLES: (state, roles) => {
    state.roles = roles
  },
}

const actions = {
  // user login
  login ({ commit }, userInfo) {
    const { username, password } = userInfo
    return new Promise((resolve, reject) => {
      login({ username: username.trim(), password: password }).then((data:any) => {
        console.log('res', data)
        commit('SET_TOKEN', data.token)
        commit('SET_NAME', data.username)
        setToken(data.token)
        resolve(true)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // get user info
  getInfo ({ commit }) {
    return new Promise((resolve, reject) => {
      // commit('SET_ROLES', ['admin'])
      // resolve({ roles: ['admin'] })
      getInfo().then((data:any) => {
        if (!data) {
          reject(new Error('Verification failed, please Login again.'))
        }

        const { roles, username, avatar, introduction } = data

        // roles must be a non-empty array
        // if (!roles || roles.length <= 0) {
        //   reject(new Error('getInfo: roles must be a non-null array!'))
        // }

        commit('SET_ROLES', ['admin'])
        commit('SET_NAME', username)
        commit('SET_AVATAR', avatar)
        commit('SET_INTRODUCTION', introduction)
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // user logout
  logout ({ commit }) {
    return new Promise((resolve) => {
      // logout(state.token).then(() => {
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      removeToken()
      resolve(true)
      // reset visited views and cached views
      // to fixed https://github.com/PanJiaChen/vue-element-admin/issues/2485
      // dispatch('tagsView/delAllViews', null, { root: true })

      //   resolve(true)
      // }).catch(error => {
      //   reject(error)
      // })
    })
  },

  // remove token
  resetToken ({ commit }) {
    return new Promise(resolve => {
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      removeToken()
      resolve(true)
    })
  },

  // dynamically modify permissions
  async changeRoles ({ commit, dispatch }, role) {
    const token = role + '-token'

    commit('SET_TOKEN', token)
    setToken(token)

    const { roles } = await dispatch('getInfo')
    // generate accessible routes map based on roles
    const accessRoutes = await dispatch('permission/generateRoutes', roles, { root: true })
    // dynamically add accessible routes
    for (const route of accessRoutes) {
      router.addRoute(route)
    }

    // reset visited views and cached views
    // dispatch('tagsView/delAllViews', null, { root: true })
  },
}

export default {
  state,
  mutations,
  actions,
}
